Apr. 5, 1995 [JP] Japan 7-080252
Apr. 7, 1995 [JP] Japan 7-082621
Jul. 11, 1995 [JP] Japan 7-174881
Sep. 11, 1995 [JP] Japan 7-232654
 Int Cl.6 G03G 15/00
 U.S. Cl 347/116; 399/39
 Field of Search 347/115. 116,
347/118. 119, 232. 251; 399/39, 51. 52.
 References Cited
U.S. PATENT DOCUMENTS
4,611,901 9/1986 Kohyama et al. .
5,001.499 3/1991 Waragai et al. .
5,061,960 10/1991 Kitajima et al 399/47
5,175,570 12/1992 Haneda et al 347/116
5.495,277 2/1996 Imamura et al 347/171
An optical system assembling method in an image forming apparatus in which there are provided an image forming body around which a plurality of exposure device each having a linear exposure optical system to imagewise expose on the image forming body, and a plurality of developing device containing respective color toners different from each other which are superimposed on the image forming body to form a color toner image, the method further having the steps of: lighting the exposure optical system; forming an image emitted from the exposure optical system on a sensor which is disposed at a position corresponding to a photosensitive surface of the image forming body with respect to the exposure optical system; adjusting a position of the exposure optical system on the basis of a result of the image forming so that a focal point of the exposure optical system is coincident with a surface of the sensor; and fixing at the adjusted position the exposure optical system to an optical system supporting body provided on a main body of the apparatus.
17 Claims, 43 Drawing Sheets